Current through wire if electromagnet is connected to source
The electromagnet of a bell is wound with 8.2 m of copper wire of diameter 0.45 mm. What is the resistance of the wire? What is the current through the wire if the electromagnet is connected to a 12-V source?
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A mixture of 1.374 g of H2 and 70.31 g of Br2is heated together in a 2.00-L vessel at 700K. These substances react as follows: H2(g)+Br2(g) D 2 HBr(g). Atequilibrium, the vessel is found to contain 0.566 g ofH2. What is the numer
A certain air-gap, parallel plate capacitor can store no more than 0.075 J of electrical energy before breaking down. How much energy can this capacitor store without breaking down after the gap between its plates is filled with neoprene rubber?
The CLT implies that certain distributions will be approximately Normal for large values of certain parameters. Give a list of examples.
To play a game, you must pay $5 for each play. There is a 10% chance you will win $5, a 40% chance you will win $7, and a 50% chance you will win only $3. What are the mean and standard deviation of your net winnings?
Identify the nucleophile and electrophile involved in the rate-determining step of the synthesis of trans-p-anisalacetophenone.
A secretary types three letters and the three corresponding envelopes. in a hurry, he places at random one letter in each envelope. What is the probability that at least one letter is in the correct envelope?
Find the pitch diameter of the pinion. The pitch diameter of the gear. The output torque of the gear. The minimum length of the key used to attach the gear?
In the distant future, an astronaut drops a wrench on an alien world. The wrench falls from rest a distance to 1.22 m to the ground, and it takes .672 seconds to fall. What is the acceleration due to gravity on this world? How fast is the wrench m
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